bush is resting in texas hospital after having unplanned surgery to open a blocked artery to his heart. abc7 news reporter joins us to discuss it. >> former president bush had the surgery this morning two re-open the artery using that is called a stent, a wire tube inserted in the blockage and inflated by a balloon to re-open the passage. the block average was discovered during a test during a routine physical yesterday. "good morning america" has their medical editor explain it. >> it allows blood to glow influence the area that was obstructed. sometimes those will close off again. during the period that tube is open, it allows blood and oxygen to get to the heart muscle. >> the president did not show symptoms and will be out of the hospital tomorrow and back do his normal schedule on thursday. ironically he was one of the most physically active presidents, avid runner and bicyclist and hosts an annual 100 kilometer bicycle ride for wounded troops. former presidents get good health care but for the average person with no history of heart disease the doctor says a stress test is rarely